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Temperature Converter — result sheet
Convert absolute temperatures among Celsius, Fahrenheit, and Kelvin, with absolute-zero validation.
Inputs used
Results
Visual chart
Breakdown
Calculation steps
Returned data table
Formula and methodology
Formula: K = C + 273.15 = (F + 459.67) * 5/9; C = K - 273.15; F = K * 9/5 - 459.67.
Temperature scales use both a scale factor and an offset, unlike simple length or mass conversion. Kelvin provides a common absolute scale. The source value is checked against its scale's absolute-zero threshold before conversion, including same-scale requests, so impossible negative absolute temperatures are never silently accepted.
This result follows the calculator's declared inputs, precision, validation boundaries, and model limits.
Input contract
- Temperature — Minimum depends on the source: -273.15 C, -459.67 F, or 0 K. Valid negative C and F temperatures are allowed.; minimum -459.67; maximum 1000000000
- From scale — 3 choices
- To scale — 3 choices
Worked example
| Input | Value |
|---|---|
| Temperature | 21 |
| From scale | C |
| To scale | F |
69.8 F
Assumptions and limits
- Values are absolute temperatures, not temperature differences; differences must not use the offset formulas.
- Negative Celsius and Fahrenheit temperatures are supported down to -273.15 C and -459.67 F respectively; Kelvin must be nonnegative.
- The existing temperature ID is preserved. Factors and offsets use the defined modern temperature scales.
Calculator note
Source and methodology
Use the official WorldCalculate methodology policy for the source, formula, precision, and boundary standards behind this calculator.
Planning estimate, not financial, medical, legal, or professional advice. © WorldCalculate — reuse with attribution. Built and curated by Hassan ALRowaie.
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